CN217081597U - Piezoelectric valve with pretightening force adjustment function - Google Patents
Piezoelectric valve with pretightening force adjustment function Download PDFInfo
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- CN217081597U CN217081597U CN202220772023.4U CN202220772023U CN217081597U CN 217081597 U CN217081597 U CN 217081597U CN 202220772023 U CN202220772023 U CN 202220772023U CN 217081597 U CN217081597 U CN 217081597U
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Abstract
The utility model relates to a piezoelectric valve technical field especially relates to a take piezoelectric valve that pretightning force was adjusted, include: the adjusting device and the resetting device are arranged in a cavity in the valve body and are respectively positioned at two sides of a piezoelectric ceramic component in the piezoelectric valve to symmetrically apply force under a first direction; the adjusting device comprises: the inclined plane adjusting block is arranged at one end of the cavity and is used for applying acting force to the piezoelectric ceramic component under the guidance of the wedge-shaped inclined plane of the valve body so as to enable the piezoelectric ceramic component to generate displacement in a first direction; and the positioning structure is attached to one end of the inclined plane adjusting block, and adjusts the initial position of the inclined plane adjusting block compared with the ceramic component. Through the utility model discloses, effectively solved the long problem of piezoelectric valve assemble duration, improved the work efficiency of assembly.
Description
Technical Field
The utility model relates to a piezoelectric valve technical field especially relates to a piezoelectric valve who takes pretightning force to adjust.
Background
The piezoelectric valve is a two-position (or proportional) control valve manufactured by utilizing the principle that functional ceramic plates generate bending deformation under the action of voltage, the angles of hinge rods are mostly adjusted by using a tungsten steel sheet plug gap mode in the piezoelectric valve on the market at present, the consistency is kept, and thus, although the stability of the piezoelectric valve in the working process is ensured, a lot of time is spent on assembly.
In view of the above problems, the present designer is based on practical experience and professional knowledge that are abundant over many years in engineering application of such products, and is actively making research and innovation in cooperation with the application of theory, so as to design a piezoelectric valve with pretightening force adjustment.
SUMMERY OF THE UTILITY MODEL
The utility model provides a take piezoelectric valve that pretightning force was adjusted can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a piezoelectric valve with pretension adjustment, comprising: the adjusting device and the resetting device are arranged in a cavity in the valve body and are respectively positioned at two sides of a piezoelectric ceramic component in the piezoelectric valve to symmetrically apply force in a first direction;
the adjusting device comprises:
the inclined plane adjusting block is arranged at one end of the cavity, and applies acting force to the piezoelectric ceramic component under the guidance of the wedge-shaped inclined plane of the valve body so as to enable the piezoelectric ceramic component to generate displacement in a first direction;
and the positioning structure is attached to one end of the inclined plane adjusting block and used for adjusting the initial position of the inclined plane adjusting block relative to the ceramic component.
Further, the oblique angle formed between the adjusting oblique surface of the oblique surface adjusting block and the bottom surface is less than or equal to 20 degrees.
Further, the reset device comprises:
one end of the hinge rod is rotatably connected with the valve body, and a first position deviating from the rotary connection position is attached to the piezoelectric ceramic component;
and one end of the spring is fixed relative to the valve body, the other end of the spring is attached to a second position of the hinge rod deviating from the rotation connecting position, and the hinge rod forms a lever under the action of the piezoelectric ceramic component and the spring.
Further, the piezoelectric ceramic assembly includes: the transmission device, the piezoelectric ceramic and the transmission rod;
two ends of the piezoelectric ceramic are respectively connected with the transmission device and the transmission rod;
the transmission device is attached to the inclined plane adjusting block;
the transmission rod is attached to the hinge rod.
Further, the transmission device includes:
the circular truncated cone top block and the inclined plane adjusting block do sliding motion;
and the adjusting top block is connected with the circular truncated cone top block and the piezoelectric ceramic.
Further, the valve body still includes:
the first limiting boss and the second limiting boss are fixed on the valve body and form a limiting channel for the circular truncated cone top block, so that the circular truncated cone top block moves along the first direction.
Further, the positioning structure is an adjusting screw.
Furthermore, the resetting device also comprises a guide post, one end of the guide post is fixedly connected with the valve body, and the guide post penetrates through the spring.
Furthermore, a guide groove is formed in the valve body, and the end of the guide column is inserted into the guide groove to be fixed.
Through the technical scheme of the utility model, can realize following technological effect:
the problem of with the angle of tungsten steel piece stopper clearance adjustment hinge rod, inefficiency is effectively solved, and saved the time, improved the work efficiency of assembly, guaranteed the stability of piezoelectric valve during operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a piezoelectric valve with pretension adjustment;
FIG. 2 is a schematic diagram of a piezo valve with pretension adjustment at a first angle;
FIG. 3 is a schematic diagram of a piezoelectric valve with pretension adjustment at a second angle;
FIG. 4 is an enlarged view of the reset device;
FIG. 5 is a view of the piezoelectric ceramic assembly and the adjustment device in assembled parts;
FIG. 6 is an enlarged schematic view of the piezoelectric ceramic assembly and the adjustment device as a whole;
FIG. 7 is a diagram of an initial operation state of the adjusting device;
FIG. 8 is a diagram of the extreme operating conditions of the adjustment device;
reference numerals: 1. a valve body; 21. a bevel adjusting block; 22. a circular truncated cone top block; 23. adjusting the top block; 3. adjusting screws; 41. a first limit boss; 42. a second limit boss; 5. piezoelectric ceramics; 6. a transfer lever; 7. a hinge lever; 8. a spring; 9. a guide post; 10. a guide groove; 11. a fulcrum point.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3, a piezoelectric valve with pretightening force adjustment is characterized by comprising: the piezoelectric ceramic valve comprises a valve body 1, an adjusting device and a resetting device, wherein the adjusting device and the resetting device are arranged in a cavity in the valve body 1 and are respectively positioned at two sides of a piezoelectric ceramic component in the piezoelectric valve to perform a first direction, and a symmetrical force application is performed as shown by a double-headed arrow in fig. 8; the adjusting device comprises: the inclined plane adjusting block 21 is arranged at one end of the cavity, and applies acting force to the piezoelectric ceramic component under the guidance of the wedge-shaped inclined plane of the valve body 1 so as to enable the piezoelectric ceramic component to generate displacement in a first direction; the positioning structure is attached to one end of the inclined plane adjusting block 21, and the initial position of the inclined plane adjusting block 21, which is compared with the ceramic component, is adjusted.
Through the technical scheme of the utility model, effectively solved and plugged the problem of the angle inefficiency of the mode adjustment hinge lever 7 in clearance with the tungsten steel piece, and saved the time, improved the work efficiency of assembly, guaranteed the stability of piezoelectric valve during operation.
The inclined plane adjusting block 21 of the piezoelectric valve with pretightening force adjustment is in contact with the piezoelectric ceramic component through the bottom surface, and an inclined angle formed between the bottom surface and the adjusting inclined plane of the inclined plane adjusting block 21 is less than or equal to 20 degrees, so that the stability of adjustment is facilitated.
During the use process, the pretightening force is adjusted as follows: the initial state of the piezoelectric ceramic assembly is adjusted through the adjusting device, when the adjusting device changes from the initial state in fig. 7 to the limit state in fig. 8, the inclined plane adjusting block 21 applies downward force to the piezoelectric ceramic assembly as shown in fig. 1, the reset device applies upward force to the piezoelectric ceramic assembly through the hinge rod 7, so that the position balance of the piezoelectric ceramic assembly is realized again, in the process, the extrusion force applied to the two ends of the piezoelectric ceramic assembly is changed through the change of the elastic deformation of the spring 8, and the adjustment of the pretightening force is completed.
Specifically, the resetting means includes:
one end of the hinge rod 7 is rotatably connected with the valve body 1, and a first position deviating from the rotary connection position is attached to the piezoelectric ceramic component; and one end of the spring 8 is fixed relative to the valve body 1, the other end of the spring 8 is attached to a second position of the hinge rod 7 deviating from the rotation connecting position at the fulcrum 11, and the hinge rod 7 forms a lever under the action of the piezoelectric ceramic component and the spring 8.
For better improving the performance of the piezoelectric valve with pre-tightening force adjustment, as shown in fig. 5 to 6, the piezoelectric ceramic component includes: the transmission device, the piezoelectric ceramics 5 and the transmission rod 6; two ends of the piezoelectric ceramic 5 are respectively connected with a transmission device and a transmission rod 6; the transmission device is attached to the inclined plane adjusting block 21; the transmission rod 6 is attached to the hinge rod 7.
Above-mentioned optimization has reduced the interference to piezoceramics 5, and transmission and transfer bar 6 are connected respectively at piezoceramics 5's both ends, and transmission and transfer bar 6 not only have the application of force to piezoceramics 5, more play the effect of protection piezoceramics 5.
For the same purpose of improving the performance of the piezoelectric valve with pretightening force adjustment, the piezoelectric ceramic 5 is protected, as shown in fig. 7 to 8, and the transmission device comprises: the circular truncated cone top block 22, the circular truncated cone top block 22 and the inclined plane adjusting block 21 do sliding motion; and the adjusting top block 23 is connected with the circular truncated cone top block 22 and the piezoelectric ceramic 5. The circular truncated cone top block 22 is selected, so that the circular truncated cone top block can better slide with the inclined plane adjusting block 21, the contact area is reduced, the friction is reduced, and the piezoelectric ceramic 5 is better protected by the adjusting top block 23.
In order to make the piezoceramic component perform linear motion better, as shown in fig. 6, the valve body 1 further includes: the first limiting boss 41 and the second limiting boss 42 are fixed on the valve body 1, and the first limiting boss 41 and the second limiting boss 42 form a limiting channel for the circular truncated cone top block 22, so that the circular truncated cone top block 22 moves along the first direction. First spacing boss 41 and the spacing boss 42 of second are stop device, make transmission and piezoceramics 5's linear motion obtain the direction, wherein, first spacing boss 41 and the spacing boss 42 of second can be independent structure, and realize the location in valve body 1 through the installation, perhaps the two is the structure that integrated into one piece goes out in the valve body 1, can make valve body 1 and piezoceramics subassembly's laminating area obtain adjusting through the setting of the two, can avoid valve body 1 to piezoceramics 5's friction on the one hand, on the other hand accessible reduces the mode of frictional area and makes piezoceramics subassembly's motion more smooth.
As an optimization of the above embodiment, the positioning structure is an adjusting screw 3. The adjusting screw 3 is selected for use, so that the adjusting effect of the adjusting device is quicker and more accurate.
Preferably, the resetting device further comprises a guide post 9, one end of the guide post 9 is fixedly connected with the valve body 1, and the guide post 9 penetrates through the spring 8. The guide post 9 plays a guiding role for the spring 8, so that the resetting device can apply force to the piezoelectric ceramic component more stably. Likewise, in order to make the guide post 9 more stable, a guide groove 10 is provided in the valve body 1, and the end of the guide post 9 is inserted into the guide groove 10 to be fixed, wherein the guide groove 10 may be a groove structure on the inner wall of the valve body 1 to provide a mounting position for the guide post 9, or a structure independently provided with respect to the valve body 1, in such a way that the valve body 1 is easier to process to provide a mounting position for the guide post 9 by being mounted with respect to the valve body 1.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A piezoelectric valve with pretension adjustment, comprising: the adjusting device and the resetting device are arranged in a cavity in the valve body and are respectively positioned at two sides of a piezoelectric ceramic component in the piezoelectric valve to symmetrically apply force in a first direction;
the adjusting device comprises:
the inclined plane adjusting block is arranged at one end of the cavity, and applies acting force to the piezoelectric ceramic component under the guidance of the wedge-shaped inclined plane of the valve body so as to enable the piezoelectric ceramic component to generate displacement in a first direction;
and the positioning structure is attached to one end of the inclined plane adjusting block and used for adjusting the initial position of the inclined plane adjusting block relative to the ceramic component.
2. A piezoelectric valve with preload adjustment according to claim 1, wherein the slope adjustment block is in contact with the piezoceramic element via a bottom surface, and an oblique angle formed between the bottom surface and the adjustment slope of the slope adjustment block is 20 ° or less.
3. A piezoelectric valve with pretension adjustment according to claim 1, characterized in that the resetting means comprise:
one end of the hinge rod is rotatably connected with the valve body, and a first position deviating from the rotary connection position is attached to the piezoelectric ceramic component;
and one end of the spring is fixed relative to the valve body, the other end of the spring is attached to a second position of the hinge rod deviating from the rotation connecting position, and the hinge rod forms a lever under the action of the piezoelectric ceramic component and the spring.
4. A piezo-electric valve with pretension adjustment according to claim 3, characterized in that the piezo-ceramic assembly comprises: the transmission device, the piezoelectric ceramic and the transmission rod;
two ends of the piezoelectric ceramic are respectively connected with the transmission device and the transmission rod;
the transmission device is attached to the inclined plane adjusting block;
the transmission rod is attached to the hinge rod.
5. A piezoelectric valve with pretension adjustment according to claim 4, characterized in that the transmission means comprise:
the circular truncated cone top block and the inclined plane adjusting block do sliding motion;
and the adjusting top block is connected with the circular truncated cone top block and the piezoelectric ceramic.
6. A piezoelectric valve with pretension adjustment according to claim 5, characterized in that the valve body further comprises:
the first limiting boss and the second limiting boss are fixed on the valve body and form a limiting channel for the circular truncated cone top block, so that the circular truncated cone top block moves along the first direction.
7. A piezoelectric valve with pretension adjustment according to claim 1, characterized in that the positioning structure is an adjustment screw.
8. A piezoelectric valve with pretightening force adjustment according to claim 3, wherein the reset device further includes a guide post, one end of the guide post is fixedly connected to the valve body, and the guide post penetrates through the spring.
9. A piezoelectric valve with pretightening force adjustment according to claim 8, wherein a guide groove is formed in the valve body, and an end of the guide post is inserted into the guide groove to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220772023.4U CN217081597U (en) | 2022-04-02 | 2022-04-02 | Piezoelectric valve with pretightening force adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220772023.4U CN217081597U (en) | 2022-04-02 | 2022-04-02 | Piezoelectric valve with pretightening force adjustment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217081597U true CN217081597U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220772023.4U Active CN217081597U (en) | 2022-04-02 | 2022-04-02 | Piezoelectric valve with pretightening force adjustment function |
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| Country | Link |
|---|---|
| CN (1) | CN217081597U (en) |
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2022
- 2022-04-02 CN CN202220772023.4U patent/CN217081597U/en active Active
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Effective date of registration: 20230626 Address after: 213000 No. 11, Fengxiang Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: QUICK INTELLIGENT EQUIPMENT Co.,Ltd. Address before: 2 / F, building 6, 66 wangmi street, high tech Zone, Suzhou City, Jiangsu Province Patentee before: Quick precision machinery (Suzhou) Co.,Ltd. |